Electronics Forum | Tue Dec 09 10:04:36 EST 2008 | lazzara55
SMT-ypw: Does PWB supplier start to implement PWB drying packaging? B3: YES! The fabrication of the PCB involves a series of wet processing that requires counter-measures to remove moisure. While some of the PCB processes also include bake cycles th
Electronics Forum | Tue Sep 12 04:48:26 EDT 2000 | Daniel
Is there a risk of popcorning plastic components during wave soldering? (The PCB is first surface mounted, reflowed and washed. It is sometimes left in air environment for as long as 48 h before the throgh hole components are mounted and they are wa
Electronics Forum | Thu Feb 12 08:35:22 EST 2015 | davef
Solder mask is intended to protect the traces from the soldering process. That's it. [Tried to upload a picture. It's broken.]
Electronics Forum | Fri Jan 02 17:47:21 EST 2004 | gpaelmo
Yes, We have done away with masking with kapton 8 yrs ago. As long as the goldfingers are leading edge you can use one of these: 1. rubber goldfinger boot/glove - contact east use to carry them...don't know if they still do. 2. fiberglass glove - ma
Electronics Forum | Thu Dec 04 00:22:11 EST 2008 | maacolomer
Hi Steven, The 24 hrs bake is an overkill according with various J-STDs. Assuming a bake temperature over the 100 Celsius degrees. There are several factors to be considered before deciding the best methodology to wash misprinted board. However,
Electronics Forum | Thu Apr 22 18:07:38 EDT 1999 | Tom B.
| On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when
Electronics Forum | Fri Jun 24 15:04:22 EDT 2011 | kahrpr
I am going to open the flood gates of comments. The purpose of no clean is so you do not have to clean it. Yes I am aware of no cleans that you can clean. If you need to clean the boards use a water soluble paste. If you do not clean, no clean prop
Electronics Forum | Tue Mar 05 14:06:41 EST 2024 | mistrthou
We don't own one, I'm a bit interested to see what you end up with. We do have a triden pcb wash, and I know Aqueous Technologes makes a lineup of misprint and stencil cleaners. We had an engineer in from Zestron chemical company, and while they don
Electronics Forum | Fri Aug 30 00:47:53 EDT 2002 | TLe
Dave, you did not understand my problem right. We don�t get paste on the PCB in the printing phase of process. I have seen also poor wetting on OSP, as you descriped, but that is very unusual. I think generally OSP is better than gold/nickel if spea
Electronics Forum | Sun Nov 13 12:26:23 EST 2011 | hasu
Hellou All, I am trying to figure out which one to buy, Miele 6002 or PBT Compaclean. Usage - washing assembled pcb's, app. 2500-3000pcs per month. http://www.mieleprofessional.co.uk/gb/professional/product/104_2987.htm http://www.asi-tech.co.il/?
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